Author: Sara Kalisnik

Hi everyone!

We are extremely excited to announce AATRN’s first-ever in-person conference, The Geometric Realization of AATRN. It will be held at iMSi, the Institute for Mathematical and Statistical Innovation, in Chicago, IL, USA, over August 18-22, 2025. Here is the conference website: imsi.topology.rocks

Registration is already open, and speakers have already been selected. We have intentionally not packed the schedule with too many talks. We encourage folks to sign up to present posters, and will have more than one poster session as appropriate to accommodate all interested attendees. Travel funding decisions are made by iMSi, but our understanding is that they have funding opportunities for both domestic and international attendees. We hope to meet the building capacity of the iMSi institute, which to the best of our understanding hasn’t been accomplished yet! For those who can’t attend in-person, talks will also be live-streamed, recorded, and posted on AATRN’s YouTube channel — but we encourage you to register and to try to attend in-person. Please feel free to contact us with any questions!

See our attached advertisement poster (and please contact us if you would like a high-resolution version for printing).

Best, the AATRN directors
Henry Adams, Hana Dal Poz Kouřimská, Teresa Heiss, Sara Kališnik, Bastian Rieck
https://www.aatrn.net
https://www.youtube.com/@aatrn1

“Homological Tools for Data” (Wednesday)

Abstract: The past fifteen years has witnessed a dramatic burst of applications of topological thinking and theorems in the applied sciences, ranging from statistics to sensor networks, neuroscience, and more, to be surveyed here. Several challenges remain, including: (1) how to compute topological quantities efficiently; (2) how to extend the set of current applications and methods; and, perhaps most importantly, (3) how to educate end-users in the meaning and proper use of homological tools.
This talk will demonstrate why homology is one of the most exciting new tools in applied mathematics.

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“New Uses for Sheaf Theory” (Thursday)

Abstract: As ideas from algebraic topology diffuse over into applied domains, we see a recapitulation of the subject’s genesis. First, the use of Betti numbers; next, functoriality (cf. persistent homology); then, categorification (current work on stability and interleaving in topological data analysis).
What next?  This talk will argue that sheaves and sheaf theory are a good candidate for the next toolbox for applied data science. The talk will give a gentle overview of this (intimidating) subject and provide details of a new class of sheaves useful in inference problems associated with sensor networks.

Final Ghrist poster

We are happy to announce an upcoming workshop: TAGS – linking Topology and Algebraic Geometry to probability and Statistics. It will take place on February 19-23 at the Max Planck Institute for Mathematics in the Sciences in Leipzig.

The workshop will bring together researchers in topological data analysis, applied algebraic geometry, statistics, and related fields. There will be a number of introductory talks on each of these topics, with the aim of attracting participants who are not necessarily experts in these fields. We will provide a platform for discussing areas of common interest, methodologies extending between fields, and currently open problems.

Travel funding and accommodation can be provided for early-career participants such as postdoctoral researchers and PhD students. Applicants are expected to write a short letter of motivation and to kindly agree to present their work in the form of a poster. PhD students will further be asked to provide a letter of recommendation from their supervisors. The deadline for funding applications is December 1, 2017.

Click here to register.